Difference between revisions of "Kube-system namespace"
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| + | <code>kube-system</code> [[Kubernetes namespaces|namespace]] | ||
| + | |||
| + | * Components: <code>[[coredns]], [[aws-node]], [[kube-proxy]], [[aws-load-balancer-controller]]</code> | ||
| + | |||
| + | kubectl -n [[kube-system]] | ||
| + | [[kubectl -n kube-system get pods]] | ||
| + | |||
| + | [[kubectl describe -n kube-system configmap/aws-auth]] | ||
| + | |||
| + | [[kubectl get sa -n kube-system]] | ||
| + | [[kubectl describe sa -n kube-system]] | ||
| + | [[kubectl get configmap -n kube-system]] | ||
| − | <code>kube-system</code> [[ | + | Helm install: |
| + | * <code>[[helm install aws-cloudwatch-metrics --namespace kube-system eks/aws-cloudwatch-metrics]]</code> | ||
| + | * <code>[[helm install aws-load-balancer-controller]]</code> | ||
| − | kubectl -n kube-system -l=k8s-app=[[kube-dns]] get pods | + | kubectl -n [[kube-system]] -l=k8s-app=[[kube-dns]] [[get pods]] |
NAME READY STATUS RESTARTS AGE | NAME READY STATUS RESTARTS AGE | ||
[[coredns]]-f47955f89-7ntw4 0/1 Pending 0 3h37m | [[coredns]]-f47955f89-7ntw4 0/1 Pending 0 3h37m | ||
| Line 14: | Line 28: | ||
coredns-f47955f89-w746j 1/1 Running 0 45h | coredns-f47955f89-w746j 1/1 Running 0 45h | ||
| − | + | * <code>[[kubectl get deployment]] [[metrics-server]] -n kube-system</code> | |
| − | + | * <code>[[kubectl get secrets]] -n kube-system</code> | |
| − | + | * <code>[[kubectl -n]] kube-system</code> | |
| − | |||
| − | + | == Errors == | |
| + | * <code>[[kube-system]] 43m [[Warning]] [[ClusterUnhealthy]] [[configmap/]][[cluster-autoscaler-status]]</code> | ||
| + | * <code>[[Cluster has no ready nodes]]</code> | ||
== Related == | == Related == | ||
* <code>[[kubectl get namespaces]]</code> | * <code>[[kubectl get namespaces]]</code> | ||
| + | * <code>[[kubectl get daemonset]]</code> | ||
* {{kube-dns}} | * {{kube-dns}} | ||
| + | * <code>[[coredns]]</code> | ||
| + | * <code>[[aws-node]]</code> | ||
| + | * <code>[[kube-public]]</code> | ||
| + | * <code>[[kube-node-lease]]</code> | ||
| + | * <code>[[kubectl edit service]]</code> | ||
| + | * <code>[[kubectl edit configmap]]</code> | ||
| + | * [[kubectl describe secret -A]] | ||
== See also == | == See also == | ||
| + | * {{kube-system}} | ||
* {{namespace}} | * {{namespace}} | ||
| − | |||
[[Category:K8s]] | [[Category:K8s]] | ||
Latest revision as of 18:45, 21 October 2023
kube-system namespace
- Components:
coredns, aws-node, kube-proxy, aws-load-balancer-controller
kubectl -n kube-system kubectl -n kube-system get pods
kubectl describe -n kube-system configmap/aws-auth
kubectl get sa -n kube-system kubectl describe sa -n kube-system kubectl get configmap -n kube-system
Helm install:
helm install aws-cloudwatch-metrics --namespace kube-system eks/aws-cloudwatch-metricshelm install aws-load-balancer-controller
kubectl -n kube-system -l=k8s-app=kube-dns get pods NAME READY STATUS RESTARTS AGE coredns-f47955f89-7ntw4 0/1 Pending 0 3h37m coredns-f47955f89-sl79r 0/1 Pending 0 3h37m
kubectl -n kube-system -l=k8s-app=kube-dns get pods NAME READY STATUS RESTARTS AGE coredns-f47955f89-d95dd 1/1 Running 0 45h coredns-f47955f89-w746j 1/1 Running 0 45h
kubectl get deployment metrics-server -n kube-systemkubectl get secrets -n kube-systemkubectl -n kube-system
Errors[edit]
kube-system 43m Warning ClusterUnhealthy configmap/cluster-autoscaler-statusCluster has no ready nodes
Related[edit]
kubectl get namespaceskubectl get daemonsetkube-dns,kube-systemNamespacecorednsaws-nodekube-publickube-node-leasekubectl edit servicekubectl edit configmap- kubectl describe secret -A
See also[edit]
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